por Murck, Barbara Winifred, 1954- [autor] | Skinner, Brian J, 1928- | Porter, Stephen C.
por Murck, Barbara Winifred, 1954- [autor] | Skinner, Brian J, 1928- [autor] | Porter, Stephen C [autor].
por Murck, Barbara Winifred, 1954- [autor] | Murck, Barbara Winifred, 1954-. Environmental Geology | Skinner, Brian J, 1928-. Environmental Geology | Porter, Stephen C. Environmental Geology.
por Murck, Barbara Winifred, 1954- [autor].
por Murck, Barbara Winifred, 1954- [autor] | Skinner, Brian J, 1928- [autor].